Abstract：To explore a new way of Zhongzhou red mud recycling,by the method of thermal analysis( TGDSC),SEM analysis,XRD analysis and the ratio of magnetic susceptibility value determination,physical and chemical characteristics on the iron recovery processing of Zhongzhou red mud were analyzed. Then adopting the method of orthogonal experiment,the roasting temperature,roasting time,reducing agent and additive dosage on the reduction roasting effect of red mud were examined. The result shows that when the red mud is roasted on the condition that the roasting temperature being 980 ℃,the roasting time lasting 100 min,and the dosages of red mud,reducing agent and additives being 100∶10∶4,after magnetic separation,the iron content of red mud get concentrated,with the grade being 56. 91%,the recovery rate being 82. 25%.

Keyword：red mud;roasting;magnetic separation;iron recovery;